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Add disjoint syntax object type

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* libguile/Makefile.am (libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES):
  (DOT_X_FILES, DOT_DOC_FILES, noinst_HEADERS): Add syntax.c and
  syntax.h.
* libguile/evalext.c (scm_self_evaluating_p):
* libguile/goops.c (class_syntax, scm_class_of, scm_goops_early_init):
* libguile/init.c (scm_init_guile):
* libguile/print.c (iprin1):
* libguile/tags.h (scm_tc7_syntax):
* module/oop/goops.scm (<syntax>):
* module/system/base/types.scm (%tc7-syntax, cell->object):
* module/system/vm/disassembler.scm (code-annotation): Wire up the new
  data type.
* libguile/syntax.c:
* libguile/syntax.h: New files.
* module/ice-9/boot-9.scm: Move new definitions to (system syntax
  internal).
* module/system/syntax.scm (print-syntax): New helper.
* module/system/vm/assembler.scm (statically-allocatable?)
  (intern-constant, link-data): Arrange to be able to write syntax
  objects into images.
* module/language/cps/types.scm (&syntax): New type.  Remove
  &hash-table; it was never detected, an internal binding, and we need
  the bit to avoid going into bignum territory.
This commit is contained in:
Andy Wingo 2017-03-24 11:17:26 +01:00
parent 6ba3f35f26
commit 64c5cc58fc
15 changed files with 221 additions and 8 deletions
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9
module/system/syntax.scm
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@ -20,7 +20,14 @@
(define-module (system syntax)
#:use-module (system syntax internal)
#:re-export (syntax-local-binding
#:re-export (syntax?
syntax-local-binding
(%syntax-module . syntax-module)
syntax-locally-bound-identifiers
syntax-session-id))
;; Used by syntax.c.
(define (print-syntax obj port)
;; FIXME: Use syntax->datum instad of syntax-expression, when
;; syntax->datum can operate on new syntax objects.
(format port "#<syntax ~s>" (syntax-expression obj)))